Im looking for a network that has CPM banners that i can place on some blogs, anyone know of some good ones ? Also is it ok to use these on sites with adsense?
It is difficult to recommend you a network without knowing anything about your site, but top tier networks include Tribal Fusion, Casale Media, ValueClick Media, and Burst Media - but if you don't meet those requirements then take a look at CPX Interactive, BannerConnect or others (I detail a number of networks including these at AdBalance - see sig) It is ok to use most ad networks alongside AdSense as long as the ads from that network do not look like AdSense ads and confuse users.
Yep, I agree with this, they are top tier ad networks. They do have requirements but its worth getting into and checking out
PopCPM has mass mailed all their clients about cleaning their network and they have also added banner CPM and increased their pop up CPM rate quite abit. i'm gonna give them a try again and see how it turns out.